Viewing Study NCT04292561


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Ignite Modification Date: 2026-02-27 @ 6:29 AM
Study NCT ID: NCT04292561
Status: COMPLETED
Last Update Posted: 2023-02-24
First Post: 2020-01-08
Is NOT Gene Therapy: True
Has Adverse Events: False

Brief Title: Intraoperative EEG Monitoring and Postoperative Delirium in Elderly Patients With Sevoflurane Anesthesia
Sponsor: The First Affiliated Hospital of Anhui Medical University
Organization:

Study Overview

Official Title: Effects of Different Sevoflurane Concentrations on Intraoperative EEG and Postoperative Delirium in Elderly Patients
Status: COMPLETED
Status Verified Date: 2022-03
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: None
Brief Summary: Delirium is an acute onset of attentional and cognitive impairment. BIS guided anesthesia can reduce the incidence of postoperative delirium. Long term electroencephalogram (EEG) suppression during operation is related to postoperative delirium. The latest research shows that the anesthesia depth guided by EEG does not reduce the incidence of postoperative delirium. The purpose of this study was to explore the relationship between anesthesia exposure with different minimum alveolar concentration(MAC) and postoperative delirium(POD), and to observe the characteristics of EEG.
Detailed Description: More and more studies have focused on the relationship between EEG inhibition and postoperative delirium in general anesthesia. At present, there are two kinds of commonly processed quantitative EEG monitoring to evaluate the depth of anesthesia, one is bispectral index (BIS) and the other is patient state index (PSI). The relationship between intraoperative anesthetic exposure and postoperative delirium is unclear, or whether potential patient characteristics increase the risk of EEG suppression and postoperative delirium.

Gastrointestinal surgery can lead to long-term changes in colonic flora, which can remotely regulate brain function through the gut brain axis. We speculated that the abnormal composition of intestinal flora before abdominal operation might be the influencing factor of POD.

Study Oversight

Has Oversight DMC: True
Is a FDA Regulated Drug?: False
Is a FDA Regulated Device?: False
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?: